﻿function getXmlHttp()
{
    var xmlhttp;
    try
    {   
        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    }
    catch(e)
    {
        try
        {
            xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");    
        }
        catch(e)
        {
            xmlhttp = new XMLHttpRequest();
        }
    }
    return xmlhttp;
}
